once again, mandela has died at 95. we'll have more later in the show. meantime, our top tech story, twitter has added the first woman to their board effective immediately. she was ceo of pearson until last year. twitter faced controversy for not having a woman board member. she tweeted, "there could not be a more exciting time to join." john is in l.a. what is the latest? >> this was a priority to have a woman join the board. there are a number of things that made her the right candidate. she is smart and a forward thinking person. speaking with someone who worked with her, she pushed the envelope in the industry. the international experience and media experience is helpful for where twitter is now. there are certainly questions about twitter's business and she can help in those areas. and emily, you had that great interview on ipo day shedding light on this process. here is what he said to you on that day. >> it was very important to us not to ask someone to join the board and sign off of registration statements before spending time with the company. w